2014 WR250R

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Top Features:
  • Directly descended from our YZ motocrossers and WR off-road machines, the WR250R is here to make Yamaha’s off-road prowess street accessible.
  • Not exactly an enduro model and not a streetbike either, the WR250R is for riders who ride off-road more than on.
Engine:
  • 250cc liquid-cooled, DOHC engine with two titanium intake valves and two steel exhausts, forged piston and plated cylinder for outstanding durability.
  • Pentroof combustion chamber with downdraft-type straight intake helps make excellent power across the rev band, with maximum power at 10,000 rpm.
  • First use of fuel injection on a 250 Yamaha on/off-road bike. The system relies on input from a crank sensor, intake air pressure sensor and throttle position sensor feeding a compact ECU to provide optimum combustion.
  • An ECU-controlled EXUP® exhaust valve, along with an electronic intake control valve, broadens the powerband.
  • High lift cams have WPC surface treatment in which the surface is sprayed with fine powder at over 100 meters per second to increase surface hardness.
  • Three-axis engine layout keeps the engine compact. Wet sump tucks between frame rails to keep the engine height down.
  • Rare earth-type ACM alternator keeps the weight down while providing all the current needed to run the FI and lighting systems.
  • Direct ignition coil sits atop the spark plug—another first on a Yamaha on-off road model.
  • Six-speed gearbox provides a wide spread of ratios, with shower-type lubrication for reliability. A special light-action clutch makes shifting a snap.
  • Tucked-in, three-chamber muffler helps keep mass centralized and the bike quiet.
  • Electric start only: Leaving off the kickstarter keeps it light and simple.
Chassis/Suspension:
  • YZ / WR250-inspired semi-double-cradle frame uses a main frame of cast and forged aluminum sections, with high-strength steel downtubes for excellent strength and rigidity characteristics.
  • Asymmetrical swingarm provides excellent strength/rigidity balance and a dynamic look. Cast aluminum crossmembers, extruded arms and a 22mm rear axle are carefully tuned for optimum handling.
  • Fully adjustable 46mm fork provides 10.6 inches of wheel travel. A forged lower triple clamp and a cast upper one help give outstanding front-end feel. An aluminum steering stem reduces weight.
  • Linkage-mounted rear shock provides 10.6 inches of travel with adjusters for compression damping, rebound damping and spring preload—and features a 14mm rod and 46mm cylinder for excellent damping and fade resistance.
  • Wave brake rotors front and rear, including a large 250mm front disc, reduce unsprung weight and provide excellent performance. Rear pedal is forged aluminum.
Additional Features:
  • A slim, steel fuel tank is shaped with knee grip in mind, and the entire ergonomic layout is designed to make the rider feel like part of the bike.
  • Narrow, YZ-inspired seat features gripper-type cover for great seat-of-the-pants feel. Seat height is 36.6 inches.
  • WR enduro-style instrument panel provides excellent visibility in spite of the compact size. Basic mode provides speed, clock, tripmeter and self-diagnostic function. Measurement mode includes stopwatch, distance-compensating tripmeter, etc.
  • Minimalist front and rear fenders are designed for function, simplicity, and lightness.
  • Bodywork with separate radiator heat outlet helps keep engine and rider cool.
  • Lightweight headlight and LED taillight maximize visibility and draw less current.
  • Adjustable front brake lever.